Version: Firmware 13.1.3 + DOS 2.2.4 Date: 2019-02-12

[Soniclife]

I did the standard rew sweeps, with the mic close to the bass mid driver to reduce room interaction. I then looked at all the measurements rew offers, and was amazed how close they all were, with no smoothing applied as well. So lots of measurements, but no jitter test, but jitter was solved years ago in good designs, so any change there would likely be tiny.

I would be surprised if there was an easily measurable change from a firmware that does not imply something was fixed or changed. But the implication above was something was measured, so it was worth looking into. Sam could be a whole other thing, I didn't test that.